Diphtheria: This disease is caused by a bacteria and may cause failure to breathe, paralysis and heart failure. One out of every 10 people who get diphtheria die from the disease.
Pertussis: Also called “whooping cough”, this bacterial disease causes coughing and choking spells that may last several weeks. Infants are most severely affected. Complications are frequent: 16 out of every 100 babies develop pneumonia, 2 out of 100 have seizures, 1 out of 200 develops lifelong brain problems and 1 out of 200 die from the disease. Outbreaks of pertussis among unvaccinated children still occur in the United States (at least 1000 cases each year).
Tetanus: Also called “lockjaw”, this bacterial disease causes muscle spasms. Tetanus kills 3 out of every 100 people who get the disease.
DaPT/Tdap VACCINE
Benefits: The vaccine protects at least 90 out of 100 children from getting pertussis and makes the illness very mild in other cases. Between 85 and 95 of every 100 children are protected from diphtheria and tetanus for at least 10 years following the primary series of vaccinations.
Risks: This vaccine comes in two forms: The older form (DPT) was used for many years with excellent results but some common reactions include soreness, swelling and redness at the injection site. Some children also experienced crankiness, drowsiness and decreased appetite for up to two days with this vaccine. Less common reactions (between 1/100 and 1/1000 cases) included nonstop, inconsolable crying for 3 or more hours, fever of 105 degrees or an unusual high pitched cry. Rare reactions (1/1750 cases) included seizures and episodes of becoming pale, limp, and unresponsive. Although brain damage has been reported following DPT immunizations, experts agree on the basis of studies involving more than 100,000 infants that the vaccine is not the cause.
The newer form of the vaccine is called DaPT. It is more highly purified and is associated with fewer serious side effects. Limb swelling and tenderness lasting for a few days occasionally occurs after the 4th or 5th booster. We use only DaPT in our office for infants and preschool age children.
Tdap, used routinely for adolescents, contains less pertussis vaccine. DT (pediatric diphtheria-tetanus vaccine), Td (Adult tetanus-diphtheria vaccine), and T (tetanus vaccine) are sometimes used in special circumstances. They all may cause mild fever and sometimes soreness, swelling and redness at the site of the injection.
Reasons to delay giving DaPT or Tdap: The vaccine should not be given if the person has a febrile illness more serious than a common cold, an unstable seizure disorder, or deteriorating development.